If you look at the biggest companies in the world, there are just a few without blogs. I challenge you to go to their websites and find the blog. Also, you’ll notice that they’re posting regularly.
If brands like Samsung, Apple or Volkswagen have blogs, I think I just made my point. Most of the time they can be found under the name “Blog” but sometimes you’ll notice they are named “Latest News” or simply “News”, pages where these companies’ communicators are writing posts about the latest announcements and releases.